With exocylic double bonds the effect of strain is in the opposite direction .

环外的双键的张力效应导致相反的结果。

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Let's think about how we can classify single and double and triple bonds,.

我们来考虑一下如何划分单键、双键和三键。

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Let's think about how we can classify single and double and triple bonds,.

我们来考虑一下如何划分单键、双键和三键。

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